Lenovo ThinkCentre M50 User Manual - Page 121

Appendix, Cleaning, mouse

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Appendix B. Cleaning the mouse This appendix provides instructions on how to clean your mouse. The procedure will be different depending on which type of mouse you have. Cleaning an optical mouse If you experience some problems with your optical mouse, check the following: 1. Turn the mouse over and look carefully at the lens area. a. If there is a smudge on the lens, gently clean the area with a plain cotton swab or plain q-tip. b. If there is some debris in the lens, gently blow the debris away from the area. 2. Check the surface you are using the mouse on. If you have a very intricate picture or pattern beneath the mouse it is difficult for the digital signal processor (DSP) to determine changes in the mouse position. Cleaning a mouse with a ball If the pointer on the screen does not move smoothly with the mouse, you might need to clean the mouse. Note: The following illustration might be slightly different from your mouse. 1 Retainer ring 2 Ball 3 Plastic rollers 4 Ball cage To clean a mouse with a ball: 1. Turn off your computer. 2. Turn the mouse over, with the top side down, and look carefully at the bottom. Twist the retainer ring 1 to the unlocked position to remove the ball. © Copyright IBM Corp. 2004 105

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Appendix
B.
Cleaning
the
mouse
This
appendix
provides
instructions
on
how
to
clean
your
mouse.
The
procedure
will
be
different
depending
on
which
type
of
mouse
you
have.
Cleaning
an
optical
mouse
If
you
experience
some
problems
with
your
optical
mouse,
check
the
following:
1.
Turn
the
mouse
over
and
look
carefully
at
the
lens
area.
a.
If
there
is
a
smudge
on
the
lens,
gently
clean
the
area
with
a
plain
cotton
swab
or
plain
q-tip.
b.
If
there
is
some
debris
in
the
lens,
gently
blow
the
debris
away
from
the
area.
2.
Check
the
surface
you
are
using
the
mouse
on.
If
you
have
a
very
intricate
picture
or
pattern
beneath
the
mouse
it
is
difficult
for
the
digital
signal
processor
(DSP)
to
determine
changes
in
the
mouse
position.
Cleaning
a
mouse
with
a
ball
If
the
pointer
on
the
screen
does
not
move
smoothly
with
the
mouse,
you
might
need
to
clean
the
mouse.
Note:
The
following
illustration
might
be
slightly
different
from
your
mouse.
±1²
Retainer
ring
±2²
Ball
±3²
Plastic
rollers
±4²
Ball
cage
To
clean
a
mouse
with
a
ball:
1.
Turn
off
your
computer.
2.
Turn
the
mouse
over,
with
the
top
side
down,
and
look
carefully
at
the
bottom.
Twist
the
retainer
ring
±1²
to
the
unlocked
position
to
remove
the
ball.
©
Copyright
IBM
Corp.
2004
105